Recent polls show Brazil’s October 4 first-round presidential contest and potential October 25 runoff as a statistical tie between incumbent Luiz Inácio Lula da Silva and Senator Flávio Bolsonaro, with margins inside the error range and both candidates carrying rejection rates near 50 percent. Flávio Bolsonaro, backed by his father Jair Bolsonaro’s Liberal Party base after the former president’s ineligibility ruling and imprisonment, has edged ahead on Polymarket trader consensus in recent weeks amid ongoing polarization and limited centrist endorsements. Lula’s campaign emphasizes welfare expansions and institutional continuity, while the challenger highlights economic grievances and Supreme Court controversies. Other candidates remain in single digits, making a two-way runoff the most probable path. The narrow polling spread and elevated undecided share leave room for late shifts driven by turnout or last-minute events before voting begins.